Improvement in the manufacture of backs for carriage-seats



UNITED STATEs PATENT OFFICE.

BENJAMIN HRLBURT, OF FORT WAYNE, INDIANA, ASSIGNOR TO HIMSELF AND NOBLE G. OLDS, OF SAME PLACE.

IMPROVEMENT IN THE MANUFACTURE OF BA'CKS FOR CARRIAGE-SEATS.

Specification forming part of Letters Patent No. 116,449, dated June 27, 1871.

To all 'whom it may concern:

Beit known that I, BENJAMIN HUELEURT, of Fort Wayne, in the county of Allen and State of Indiana, have invented certain new and useful Improvements in the Manufacture of Backs for Carriage-Seats; and I do hereby declare that the following is a full and exact description thereof, reference being had to the accompanying drawing and to the letters of reference marked thereon,in which like letters refer to like parts in the different figures.

Figure l represents a plan view of the block from which the backs are cut after being bent to the desired form. Fig. 2 represents a side elevation of the same While in the process of cutting. Fig. 3 represents a plan view of the seat after be ing completed. Fig. 4 represents an elevation of the same.

The nature of my invention consists in a new and improved method of constructing the back of carriage-seats and securing them to the beds of thc same. My improvements relate particularly to the method employed in preparing said backs77 for use as an article of manufacture.

To ena-ble others skilled in the arts to lnake and use my invention, I Will proceed to describe its construction and the manner of applying it.

A, Fig. l, represents a block of timber ofa suitable length, breadth, and thickness, the sides of Which are made plain and areparallel. This block is irst bent by the ordinary means, in any form desired, as seen in said Fig. l, after which it is cut into a series of parallel diagonal sections, c, by means of a band or jig saw, B, the line of which stands at any suitable angle to the plane of the table upon which the operation is performed, as seen in Fig. 2. Each section which is thus cut from the block forms, when secured to the bed or base of the seat, as seen in Figs. 3 and 4, a light, strong, and durable back, having no joints or other weak points incident to timber which is cut across its grain. After said sections are cut from the main block they may bel inished up by curving their upper edges to suit the tast-e of the manufacturer, While their lower edges are made plane, as seen in Fig. 4, so as to t snugly onto the upper surface of the base of the seat.

It will be observed that backs cut in this manner form a solid curved block, as described, and will have the necessary curve to form the back and ends ofthe seat, while, at the same time, any desired pitch of plane may be obtained.

I do not claim as my invention any particular curve for the back or ends of the seat; neither do I confine myself to any particular angle or pitch at which the backs are set in relation to the plane of the base neither do I claim setting continuous curved backs on carriage-seats, as such backs are now in common use; but those in use arc either cut from solid timber, and those portions ofthe back which form the ends of the seat are cut across the grain, and are, therefore, easily broken, While those put together in joints are, owing to frequent severe strains, liable to, and almost invariably do, open at the joints, and thus render the seat of little or no value.

I have described what I consider to be the best and most practicable mode of carrying my invention into effect; but it is manifest that modifications may be made in the same Without departure from the principle ofthe invention or the result thereby secured, which is the production of the back and ends in one piece, With the bers run ning longitudinally throughout its whole extent, the requisite flare of said parts being given by the direction of the saw-cuts by which the piece is separated from the block.

What I claim as new, and desire to secure by Letters Patent, is-

1. The process, herein described, of making carria-ge-seat backs and ends by cutting the same in one piece, and in a iiaring form, from a block of timber previously bent or curved, substantially as shown and set forth. l

2. As a new manufacture, carriage-seat backs and ends obtained from a block of timber first bent, as described, and then cut longitudinally into liarin g sections, substantially as herein shown and described.

BENJAMIN HURLBURT.

Witnesses:

GEO. D. CRANE, H. F. WILLsoN. 

